Bearing pile construction



G. GfGRELJLlci-l4 Filed Nov. 25, 1938 BEARING PILE CONSTRUCTION July 4, 1939.

Patented July 4, 1939 Unirse sTATjEs eATsr oFricE 2 Claims.

This invention relates to the application of enlargements to the normal bearing pile section only in that portion of the pile which is in firm load-carrying soil.

mi object of this invention relates to applying an enlargement to the body of the bearing pile which is tapered and increases in width and size toward its upper end.

Another object of this invention is to secure tapered lagging upon the edges of the H or I- shaped beam member so as to provide a hollow chamber in that portion of the length of the pile adjacent the lagging which produces a bearing pile capable of securing a greater displacement of earth with a minimum amount of lagging material.

Other objects and advantages will become apparent as the description proceeds and reference is had to the accompanying drawing, in which:

Figure 1 is an elevation showing a conventional type of beam piling provided, upon the edges of the ange, with tapered lagging having parallel sides;

Figure 2 is an elevation at right angles to Figure l;

Figure 3 is a section on line III-III of Figure 1;

Figure 4 is a section on line IV-IV of Figure 1; and

Figure 5 is an enlarged detailed sectional View showing the manner of attaching the lagging members to the beam flanges.

In the drawing, the numeral 2 represents the main body portion of the bearing pile and comprises a conventional type metal H or I-shaped member extending downwardly through the water and mud into the stratum of firm soil.

On that portion of the main body portion which penetrates the iirm soil stratum, there is provided an enlargement, indicated generally at 3, which enlargement tapers gradually downwardly from the top to the bottom of said enlarged portion 3.

The enlargement for the bearing pile is formed by securing across the edges of the flanges 5, of the main body portion 2, tapered lagging members 6. These lagging members may be timber, as shown, or if desired, may be formed from metallic sections, pre-cast contrete or other suitable material. The lagging members 6 are each provided with a straight face 'l adapted to abut and extend across the edges of the anges 5 so as to provide a hollow chamber in that portion of the length of the pile adjacent the lagging, while the opposite faces of said lagging members taper downwardly from the top surface toward the bottom end thereof. The side walls of said lagging members are straight and extend parallel to the longitudinal axis of the bearing pile.

Metal battens 8 are positioned between the flanges 5 at spaced intervals along the length of the enlarged portion of the bearing pile and welded thereto in any conventional manner. Threaded openings are provided in said battens to receive the threaded bolts 9 which pass through the lagging members so as to securely retain said tapered lagging members 6 on said main body portion of the bearing pile.

Suitable metallic caps lil, of angle-iron construction, are positioned between the flanges 5 and welded thereto, while upwardly extending bracket members l2 are welded to the adjacent edges of said cap members and to each side of the web I4. This cap and its integral projecting bracket IZ serves the purpose of closing the top end of the hollow chamber l5 and also receives the upward thrust of the load on the tapered lagging members.

At the bottom extremities of the tapered enlargement formed by the lagging members li are heavy angle-irons I6 which are welded or secured, in any conventional manner, to the web and ange of the H or I-shaped beam member. These angle-irons close the bottom end of the hollow chamber I 5 and, at the same time, provide a protective shoe on the end of the lagging members 6 which is rugged enough not to be dis' torted under the forces encountered during driving of the pile through the respective strata.

While I have shown and described a specic embodiment of the present invention, it will be seen that I do not wish to be limited exactly thereto, since various modications may be made without departing from the scope of the invention, as defined by the following claims.

I claim:

l. A steel bearing pile having an H or I-shaped cross-section, oppositely disposed lagging members abutting the edges of the flanges of said bearing pile and forming a hollow chamber in that portion of the longitudinal length of said bearing pile adjacent said lagging members, metal battens positioned between the flanges on each side of the web of said bearing pile and welded thereto, said lagging members secured to said metal battens and means for closing the hollow chamber at the top and bottom, said means including metallic angle-iron caps positioned between the flanges of said H or I-shaped beam member and welded to the anges and web thereof.

lbearing pile and forming a hollow chamber in that portion of the longitudinal length of said bearing pile adjacent said lagging members, said v lagging members having a straight surface abutting the edgesv of said anges and an` oppositely disposed downwardlytapered surface forming a tapered enlargement on said bearing pile, said tapered enlargement extending only over that portion of said bearing pile which is in firm load-carrying soil, metallic battens positioned:

between the flanges of said bearing pile on Veach side of the web and welded thereto, said tapered lagging members secured to said metal battens and angle-irons positioned on the top and bottom of said lagging members and extending within the space between the flanges of saidrbearing pile for forming a cap or closure for said hollow chamber, said angle-irons welded to the flanges and web of said bearing pile, and brackets welded to the adjacentv edges of. said upper angle-irons and to the web of. saicll beam member for receiving the upward thrust of the load on said tapered lagging members.

GERALD G. GREULICH. 

